// 天气温度echarts的使用

import React from 'react';
import ReactEcharts from 'echarts-for-react';
import { Card } from 'antd';
// class LineMarkerEcharts extends React.Component { 换成下面写法
export default class LineMarkerEcharts extends React.Component {
    propTypes = {
    }
    getOtion = () => {
        const option = {
            title: {
                text: '未来一周气温变化',
                subtext: '纯属虚构'
            },
            tooltip: {
                trigger: 'axis'
            },
            legend: {
                data: ['最高气温', '最低气温']
            },
            toolbox: {
                show: true,
                feature: {
                    dataZoom: {
                        yAxisIndex: 'none'
                    },
                    dataView: { readOnly: false },
                    magicType: { type: ['line', 'bar'] },
                    restore: {},
                    saveAsImage: {}
                }
            },
            xAxis: {
                type: 'category',
                boundaryGap: false,
                data: ['周一', '周二', '周三', '周四', '周五', '周六', '周日']
            },
            yAxis: {
                type: 'value',
                axisLabel: {
                    formatter: '{value} °C'
                }
            },
            series: [
                {
                    name: '最高气温',
                    type: 'line',
                    data: [11, 11, 15, 13, 12, 13, 10],
                    markPoint: {
                        data: [
                            { type: 'max', name: '最大值' },
                            { type: 'min', name: '最小值' }
                        ]
                    },
                    markLine: {
                        data: [
                            { type: 'average', name: '平均值' }
                        ]
                    }
                },
                {
                    name: '最低气温',
                    type: 'line',
                    data: [1, -2, 2, 5, 3, 2, 0],
                    markPoint: {
                        data: [
                            { name: '周最低', value: -2, xAxis: 1, yAxis: -1.5 }
                        ]
                    },
                    markLine: {
                        data: [
                            { type: 'average', name: '平均值' },
                            [{
                                symbol: 'none',
                                x: '90%',
                                yAxis: 'max'
                            }, {
                                symbol: 'circle',
                                label: {
                                    normal: {
                                        position: 'start',
                                        formatter: '最大值'
                                    }
                                },
                                type: 'max',
                                name: '最高点'
                            }]
                        ]
                    }
                }
            ]
        };
        return option;
    }
    render() {
        return (
          <>
          <Card
          title="Default size card" extra={<a href="#">More</a>} style={{ width: '100%' }}>

          <ReactEcharts
                option={this.getOtion()}
                className='react_for_echarts' />
          </Card>
          </>

        );
    }
}
